Texas Instruments TL720M05-Q1 Low-Dropout Voltage Regulators
Texas Instruments TL720M05-Q1 Low-Dropout Voltage Regulators are low-dropout linear regulators designed to connect to the battery in automotive applications. The device has an input voltage range extending to 40V (new chip), which allows it to withstand transients (such as load dumps) expected in automotive systems. The device is designed for powering always-on components with only a 17µA quiescent current at light loads. These components include microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems.
The device (new chip) has a state-of-the-art transient response that allows the output to react quickly to changes in load or line, for example, during cold crank conditions. The device has a unique architecture that minimizes output overshoot when recovering from dropout. During regular operation, the device has a tight DC accuracy of ±1.15% over temperature, line, and load (new chip).
The device also incorporates several internal circuits for protection against overload and over-temperature. The legacy chip also protects against reverse polarity. The TL720M05-Q1 efficiently transfers heat to the circuit board with thermally conductive packaging. The Texas Instruments TL720M05-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- AEC-Q100 qualified for automotive applications
- Temperature grade 1 (-40°C to +125°C, TA)
- Junction temperature (-40°C to +150°C, TJ)
- Input voltage range
- Legacy chip: 5.5V to 42V (45V absolute max)
- New chip: 3.0V to 40V (42V absolute max)
- Maximum output current: 500mA (new chip)
- Output voltage accuracy
- Legacy chip: ±2.0% (across line, load, and temperature)
- New chip: ±1.15% (across line, load, and temperature)
- Low dropout voltage
- Legacy chip: 500mV (max) at 300mA
- New chip: 400mV (max) at 315mA
- Low quiescent current
- Legacy chip: 100µA (typ) at IOUT = 1mA
- New chip: 17µA (typ) at light loads
- Excellent line transient response (new chip)
- ±2% VOUT deviation during cold-crank
- ±2% VOUT deviation (1V/µs VIN slew rate)
- Stable with a 2.2µF or larger capacitor (new chip)
- Reverse-polarity protection (legacy chip)
- Packages
- 3-pin TO-252 (KVU)
- 3-pin DDPAK/TO-263 (KTT)
- 20-pin HTSSOP (PWP) (legacy chip)
Applications
- Reconfigurable instrument clusters
- Body control modules (BCM)
- Always-on battery-connected applications
- Automotive gateways
- Remote keyless entries (RKE)
Functional Block Diagrams
Published: 2017-07-26
| Updated: 2025-03-06